历史时期的"黄河清"现象初探

古人对黄河清有“祥瑞之兆”和“不祥之征”两种观点。黄河澄清是一种自然现象,却又不可能出现在正常条件下,它有其内在的规律。只有当流域内大范围出现异常情况,如持续干旱少雨、冬季过于寒冷、地震等时,才会导致黄河河水变异,出现黄河澄清的现象。黄河清是干旱和黄河断流的前兆。同时,黄河清还与社会政治、化和生活交织在一起,成为奇异的化与社会现象。     

吉林省旅游创意产业发展研究

文化创意为旅游产业注入观念、感情和品位等新的要素,旅游创意产业基于创意元素与旅游元素的完美融合。旅游创意产业依托于旅游元素的感知度、服务性和创意元素的新奇度、体验性,并在双方相互渗透的基础上,通过创意理念为旅游业搭建桥梁,从而促进旅游业的发展。通过对创意产业的特点、旅游创意产业的作用和生命周期等的分析,探讨了吉林省旅游创意产业发展状况和发展重点。     

秦、西汉时期关中农业发展的地域差异

在秦汉定都关中期间,围绕都城的建设与发展,关中内部的农业生产格局发生了较大变化,生产重心日益向东北方向倾斜。西汉后期关中东部渭北地区是关中农业生产的重心;西南部的农耕经济则几乎完全遭到毁灭;西北、东南部的农业生产虽有较大发展,其速度较东北部而言,却相对缓慢。     

旅游业与我国经济增长关系的实证分析

旅游业与国民经济增长之间的关系一直是有关学者研究的对象,这也导致了对旅游业地位的不同认识。本文利用历史数据对改革开放以来中国居民旅游消费支出与经济增长之间的关系作出判断,认为我国旅游业与经济增长之间并不存在稳定的因果关系。文章对产生这种现象的原因进行了分析,并提出了相关政策建议。     

计量经济分析方法在国外旅游研究中的应用——基于ATR和TM所载文献的统计分析

本文对国外旅游界最具影响力的两大旅游研究刊物Annals of Tourism Research（ATR）（1974—2005）和Tourism Management（TM）（1980—2005）中运用计量经济分析方法的122篇文献进行了全面回顾。在对计量经济分析方法的构成情况及应用领域进行统计分析的基础上,对其在国外旅游研究中的应用演进情况做了归纳和概括。研究发现,计量经济分析方法正逐渐成为国外学者进行旅游研究的主要手段之一,其中回归模型、时间序列模型和面板数据模型是最常用的手段;方法的应用主要集中在旅游需求研究方面,其次是旅游产业与环境关系研究、旅游供给研究。从研究方法的应用演进来看,经过30多年的发展,从静态的零星运用到比较系统的、动态的多种方法的整合运用,计量经济分析方法在旅游研究中的应用日渐成熟。     

Mode Choice in a Hub-and-Spoke Network: A Zero-One Linear Programming Approach

While research has tackled the hub-and-spoke network design problem, that research has overlooked the air-truck modal integration issue which is a common feature of real express delivery systems. This paper devises integer linear programs to represent the mode and route assignment aspects of the operational problem. The model is solved under four different levels of delivery schedule, and the results show that as the promised delivery schedule is relaxed, not only does the use of truck routes become more desirable, but also interesting adjustments in mode and hub assignment occur. Consider the case of hubs in Los Angeles and Dayton. As the time constraints are relaxed, cities such as Minneapolis and New Orleans originally linked by air to Los Angeles, switch to Dayton because cheaper truck routes become feasible.     

京军与明代京城的宫殿庙宇建筑

京军本为守御京师(畿)而设,但随着政局的稳定和社会经济的发展,皇亲贵戚的生活越来越奢华,京城内的工程修建越来越多,大批京军被抽调借拨到建筑工地,一部分京军竟然演变成职业建筑工人。京军参与修筑的建筑物主要是宫殿庙宇。京军修筑虽然组织方便、节省费用,却严重影响到军队的战斗力,加速了军队的衰败,这也是明朝灭亡的一个重要因素。     

晚清海盗述论——以《申报》为中心

本文利用《申报》资料,勾勒晚清海盗的基本情况,以期丰富与深化中国近代社会史的研究。晚清时段各地均有海盗出没,他们横行海上,杀人越货,绑票勒赎,有时还上岸抢劫,对抗官兵,导致商旅裹足,外国插手,对社会经济造成严重危害。官府与民间分别采取各种对策以应对,收到了一定的效果,但根治海盗依旧任重道远。     

Conodonts and tabulate corals from the Upper Ordovician Angullong Formation of central New South Wales,Australia

Zhen, Y.Y., Wang, G.X. &; Percival, I.G., August 2016. Conodonts and tabulate corals from the Upper Ordovician Angullong Formation of central New South Wales, Australia. Alcheringa 41, xxx–xxx. ISSN 0311-5518.

The Angullong Formation is the youngest Ordovician unit exposed in the Cliefden Caves area of central New South Wales. Its maximum age is constrained by a Styracograptus uncinatus graptolite Biozone fauna at the very top of the underlying Malongulli Formation, but the few fossils previously reported from higher in the Angullong Formation are either long-ranging or poorly known. From allochthonous limestone clasts in the middle part of the formation, we document a conodont fauna comprising Aphelognathus grandis, A. solidum, Aphelognathus sp., Aphelognathus? sp., Belodina confluens, Drepanoistodus suberectus, Panderodus gracilis, Panderodus sp., Phragmodus undatus, Pseudobelodina inclinata and Pseudobelodina? sp. aff. P. obtusa, which supports correlation with the Aphelognathus grandis Biozone (late Katian) of the North American Midcontinent succession. The species concepts of Aphelognathus and Pseudobelodina are reviewed in detail. Associated corals are exclusively tabulates, dominated by agetolitids, including Agetolites angullongensis sp. nov., Heliolites orientalis, Hemiagetolites breviseptatus, Hemiagetolites sp. cf. H. spinimarginatus, Navoites sp. cf. N. circumflexa, Plasmoporella bacilliforma, P. marginata, Quepora sp. cf. Q. calamus and Sarcinula sp. Affinities of the coral fauna from the Angullong Formation are closer to faunas from northern NSW and northern Queensland than to the locally recognized Fauna III of late Eastonian age in central NSW. We propose a subdivision of Fauna III to account for this difference, with the late Katian Fauna IIIB characterized by the incoming of agetolitid corals. The currently known distribution of representatives of this group with adequate age constraints suggests that agetolitids possibly originated in North China, subsequently migrating to Tarim, South China and adjacent peri-Gondwanan terranes while also spreading eastward to northern Gondwana, where they progressively moved through eastern Australia to reach the central NSW region by the early Bolindian.

Yong Yi Zhen* (yong-yi.zhen@industry.nsw.gov.au) and Ian G. Percival (ian.percival@industry.nsw.gov.au), Geological Survey of New South Wales, W.B. Clarke Geoscience Centre, 947–953 Londonderry Road, Londonderry, NSW 2753, Australia; Guangxu Wang (gxwang@nigpas.ac.cn), State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, 39 East Beijing Road Nanjing 210008 PR China.     

试论口述历史对中国当代社会史研究的启示

中国当代社会史是国史的分支史,是以当代中国社会发展和变迁为主脉的社会历史研究,这一学科定位决定了当代社会史的研究旨趣。口述历史关注普通民众的日常生活,并以唤醒记忆的方式重建个体生命经验与宏观社会结构之间的联系,因此,口述历史蕴含着带有普遍意义的当代社会变迁问题,也是当代社会史研究参与多学科对话、为现实问题提供历史依据的基础。